http://www.phys.uu.nl/~thooft/theorist.html

dont get confused that the page mentions that the resources are meant for prospective theoretical physics.

after all,dont forget that to get into IIT you need to be very strong in fundamentals.

The article is AUTHORED and the resources are RECOMMENDED by 

Gerard 't Hooft

(NOBEL PRIZE WINNER FOR PHYSICS IN 1999)